The process of things coming together and becoming more similar or meeting at a point. It is used in science, technology, and ideas when separate paths start to join.
From Latin *convergere* 'to incline together', from *con-* 'together' and *vergere* 'to bend, turn'. The noun form in English grew from the idea of lines or paths bending toward each other.
Convergence is like the opposite of drifting apart—think of rivers joining, or different technologies blending into one smartphone. In evolution, unrelated animals can show 'convergent' features, like wings, because they face similar problems. The word is a reminder that different paths can end up in surprisingly similar places.
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